[Elecraft] Ameritron 240V inrush limiter: any benefit on a KPA500?

[Bob McGraw K4TAX]

Solid state amps do not require added inrush protection.

And most correctly designed tube amps do not need inrush protection.   
In cases where the design, usually HB ones, have excessive current 
capacity in the heater or filament transformer, or in cases where HV 
transformers have insufficient resistance in the secondary are cases 
where inrush protection is desired.

Amps such as SB-200, SB-220, TL-922, L4B, Centurion, Titian, Amp Supply, 
Ameritron, and other like commercial amps have sufficient design 
implementations such that those do not require inrush protection.    At 
the same time, many amps using indirectly heated cathodes may have time 
delay systems to allow the heater to get the cathode to correct 
operating temperature is different than inrush protection

73

Bob, K4TAX

On 1/18/2020 12:06 PM, Ron Durie wrote:
> NO.  Solid state amps do not need inrush protection.  73's
>
> Ron WB4OOA
> Elecraft K-Line
>
>
>
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